Patent GB-853690-A (GB)
Title: Improvements in book casing-in machine and adhesive applying attachment therefor
IPC: B42C11/04
Filed: 1957-04-18
Abstract: 853,690. Bookbinding machines. SMYTH MANUFACTURING CO. April 18, 1957 (Oct. 4, 1956], No. 12797/57. Class 16. A book casing-in machine comprises longitudinally reciprocable means for intermittently and rearwardly feeding along a horizonal path a succession of bookfillers with their backs upward and means adjacent said path and operable during movement of fillers therealong for applying adhesive to fillers so fed, which adhesive is applied at opposite upper zones near the backs of the fillers. Fillers whose successive positions are designated F<SP>1</SP>-F<SP>7</SP>, with their rounded backs uppermost are placed on a vertical guide plate 26, 26a Fig. 1, on a vertically adjustable bar 10, between transversely and vertically adjustable guides 22, 24. The fillers are fed along the bar 10 by a carrier comprising cross-bars 34, 36, Fig. 2, connected by bars 38 and movable along a stationary shaft 40 and an oscillatory shaft 42, the crossbar 36 being connected by a link 44 with the upper arm of a lever 46, oscillated once during each cycle of the machine. The cross-bar 34 is connected to longitudinally reciprocable feed bars 48, 50 carrying two or more pairs of pusher fingers 60 and 62 each finger being pivoted as at 64, and biased by a spring 66 towards filler engaging position. In operation, as the carrier moves rearwards, the filler F<SP>1</SP> is simultaneously moved by fingers 60 to position F<SP>2</SP>, the filler F2 is moved by fingers 62 to position F<SP>3</SP> and the filler F<SP>3</SP> is clamped by jaws (not shown) and moved to the F4 position. The jaws are pivotally mounted on rods extending between the bars 34, 36 and oscillated through gears and a link by the oscillating sleeve 74 of the shaft 42. When the carrier is returned to its initial position, the jaws release the filler F<SP>4</SP> and the fingers 60 and 62 move past the fillers F2 and F3. At a position intermediate F<SP>1</SP> and F<SP>2</SP> adhesive, preferably glue, is applied to the inwardly curved upper zones of the fillers immediately below their wider rounded backs by rollers 82, 84, Fig. 6, contoured to conform with the zones and mounted on spindles 140, 142 oppositely inclined and with axes diverging upwardly to allow the rollers to dip into glue boxes 144, 146 with inner wider portions, Fig. 2. Preferably, similar boxes 148, 150 holding heated water are located below the boxes 144, 146. The adhesive applying means is mounted on a transverse horizontal rail 152 and may comprise a separate attachc ment. The rollers 82, 84 are connected by brackets 164, 166 to heads 158, 160 adjustably mounted on the rail 152 and retained by strips 162 Fig. 8. The rollers 82, 84 are driven, their peripheral direction and speed being the same as those of the fillers, by engagement of gears 168, 170, Fig. 6, on the spindles 140, 142 with gears 174, 175 within the heads 158, 160, which gears engage longitudinal grooves in a shaft 172, Fig. 9. The shaft 172 is rotated by engagement of a rack 176 on the carrier with a gear 178 connected to the shaft 172 by a unidirectional clutch 186, Figs. 8 and 9, so that during the return movement of the carrier, the shaft 172 and rollers 82, 84 are idle. Preferably there are associated with the rollers 82, 84 doctor rollers 188 rotatable on spindles 190, Fig. 6, and driven by gears 194 meshing through idlers 196 with gears 192 on the spindles 140, 142. Each doctor roller 188 rotates in the same direction as its corresponding main roller but at greater speed and deposits glue thereon, scrapers 198 being provided to eliminate excess glue. To avoid application of glue to the extreme front and rear edge portions of the fillers the rollers 82, 84 are held out of engagement with the filler until the leading edge of the filler has passed and disengaged before the trailing edge arrives. The heads 158, 160 Figs. 8, 9, freely movable along the rail 152 are biased for inward movement by. springs 200, Figs. 6-9. Preferably, the springs surround rods 212, 214 extending through the side walls 216, 218 of the machine, with nuts 220, 222 to limit inward movement of the heads and rollers by the springs 200, 202. Transverse movement of the head and rollers is controlled by cams 224, 226 adjustably mounted on the bar 180, and a spacer 227 which on engagement with rollers 230, 232 carried by members 204, 206 hold the rollers 82, 84 apart, the springs 200, 202 urging the rollers 82, 84 to engage the fillers when the cams and rollers 230, 232 are disengaged. To accommodate fillers of different thicknesses, the members 204, 206 carrying the rollers 230, 232 are transversely adjustable relatively to the heads 158, 160 by means of slides 234, 236 guided in the heads, Fig. 8. Screws 238 fixedly secured to the heads 158, 160 are screwed into the shanks of knobs 240, the flanges 242 of which engage grooves in the slides 234, 236, and keys 244 on the lower faces of the slides engage inclined keyways in the upper faces of the members 204, 206. Rotation of the knobs 240 thus gives the slides 234, 236 motion having both a longitudinal and a transverse component and the heads 158, 160 and rollers 82, 84 are adjusted transversely relatively to the members 204, 206 carrying the rollers 230, 232. After application of adhesive to the upper zones, the filler is moved through positions F<SP>2</SP> and F<SP>3</SP> as described above, placed by the jaws previously mentioned but not shown on a saddle 86, Figs. 1, 2, and moved to the position F<SP>5</SP> by a member 90. The filler is lifted off the saddle 86 into position F<SP>6</SP> by a blade 94 carried on a block 102 mounted on an intermittently moving chain 96. Rollers 108, 110, Fig. 5, apply adhesive, preferably paste, to the sides of the filler except at the zones to which adhesive has already been applied. Paste is supplied to the rollers 108, 110 by rollers 112, 114 within paste boxes 116, 118 horizontally movable into and out of engagement with the fillers by levers 120, 122 so timed that the rollers first contact the filler at the bottom of the zones already glued by rollers 82, 84. Further upward movement causes the filler to engage a case K, members 128 and 130 respectively folding and pressing the covers against the sides of the filler. Lifting plates 132 lift each book to jaws 134, carried by an arm 136, which engage the cover joints J and the arm 136 swings to position 1361, Fig. 1, the jaws 134 then separating and depositing the book in a receptacle 138. Specification 346,776 is referred to.